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bickfordb/gist:3115004

Created July 15, 2012 04:33
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choice
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gistfile1.py
def choose1(weighted_elements):
total = 0
selected = weighted_elements[0][0]
for item, weight in weighted_elements:
total += weight
k = random.random() * total
if k <= weight:
selected = item
return selected
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